Joseph elton bott



. (No Model.)

J. E. BOTT. FIRE EXTINGUISHER.

No. 474,208. Patented May a, 1892.

JOSEPH ELTON BOTT, OF STOOKPORT, ENGLAND.

FIREQEXTINGUISHER.

SPECIFICATION forming part Of Letters Patent NO. 474,208, dated May 3,1892.

Application filed November 10, 1891. Serial No. 411,487. (No model.)

To all whom it may concern.-

Be it known that I, JOSEPH ELTON Borr, a subject of the Queen of GreatBritain, residing at Brinnington Hall, Stockport, in the county ofChester, England, have invented certain new and useful Improvements inAutomatic Fn'eEXtinguishers, of which the following is a specification,reference being had to the accompanying drawings, and to the lettersmarked thereon.

My invention consists of an improved apparatus for sprinkling theinterior of buildings or'other places with a liquid compound inimical totire.

In the accompanying drawings, Figure 1 is a diagram representing asection of a fire-extinguisher constructed according to my invention;and Fig. 2 is a section, on a larger scale, through one of thetrunnions.

In carrying my invention into effect I construct a receptacleo(preferably cylindrical) for the purpose of containing-an alkaline orchemical mixture inimieal to fire. The said receptacle a is constructedwith two trunnions or pivots I), placed on the sides of the vessel atsufficient distance from its center of gravity to cause one end of thereceptacle a, when free, to swing into a lower position than the otherend. I11 order to support the cylinder or receptacle a in a verticalposition, the trunnions b are fixed in hearings or journals c, whichlatter are suspended from the ceiling of the room or place to beprotected by a forked bar or frame 0, to which the journals 0 are fixed,or the trunnions b may be fixed to other suitable support. In order tokeep the cylinder or receptacle a from turning over, the said trunnionsh are soldered to the journals 0 with a fusible solder in the mannerrepresented at Fig. 2, in which I have represented a space or recessformed in both the trunnions b and the journals 0,

which space is filled with fusible solder 00 to retain the receptacle (Lin a vertical position. The journals 0 are also formed with a hole intheir lower sides to afford access of heat to the solder a: and to allowthe latter to run out when melted.

WVhen secured with its longer axis in an upright position, as shown inthe drawings, or previously, the receptacle a is filled with thealkaline or chemical mixture through an opening a in the upper end orcover, which latter is also constructed with one or more suitablesprinkling-nozzles a The interior of the receptacle dis provided withsuitable means of centrally guiding a glass bulb or tube e, whichcontains acid, (sulphuric or muriatic.) Preferably I employ a metal tubef, fixed to the bottom of the receptacle a. The glass tube or bulb eissealed by the blowpipe before being placed in its guidef in the cylindera. The plug or stopper g, closing the opening a, through which thealkaline or chemical liquid is charged into the receptacle a and throughwhich the said bulb or tube 6 is admitted, is then screwed into the saidopening a, the lower portion of said plug or stopper g being formed intoa sharp point g.

The action of myimproved fire-extinguishing apparatus is as follows: Onthe temperatu re of the room or other place reaching 154 Fahrenheit orany other predetermined temperature the fusible solder .22, forming theretaining-joint at the bearings in the trunnions, is melted, and thereceptacle a, being thereby released, suddenly swings downward.- Theglass bulb or tube 6, containing acid, is then broken on contact withthe point g of the plug or stopper 9. The acid then mixes with thealkaline or chemical liquid in the reeepta cle a, and thereby liberatesgases the pressure from which forces the alkaline or chemical compoundthrough the sprinkling-nozzles and extinguishes the flames or theincipient fire before there is any chance of its spreading.

The principal advantage I claim for my invention is that theacid, beingcontained in a sealed tube, so thatno evaporation can. take place, isautomatically liberated at the exact moment when required. Thus theapparatus is always ready and free from the internal derangements andliability to getting out of order inseparable from sprinkling apparatusactuated by electrical or other mechanical means.

Having fullydescribed my invention, what I desire to claim and secure byLetters Patent 1s- 1. In an automatic fire-extinguisher, thecombination, with a receptacle a, of trunnions 12, journals 0, carryingsuch trunnions, coacting spaces formed iusuch trunnions and j our nals,ahole at the lower part of each journal communicating with the spaces,and fusible solder filling the said spaces, substantially as hereinshown and described, and for the purpose stated.

2. In an automatic fire-extinguisher, a re ceptacle a, containingsprinkling-nozzles, a guide f, a sealed glass tube or bulb containingacid and arranged in said guide, and a point 9 in line With said guideto break the glass tube or bulb when the receptacle is re versed,combined With receptacle-reversing means consisting of trunnions 12,journals 0,

carrying such trunnions, coacting spaces formed in such trunnions andjournals, a hole at the lower part of each journal communicating withsaid spaces, and fusible solder filling said spaces, substantially asdescribed.

JOSEPH ELTON BOTT. Witnesses:

' CLAUDE K. MILLS, 23 Southampton Buildings, London, Patent Agent.

H. SEYMOUR MILLS, 23 Southampton Buitdmgs, London, W. O.

